KingsBottle MLF450 User manual

OPERATION MANUAL
BIOMEDICAL FREEZER
BIOMEDICAL FREEZERS
BEFORE USE, PLEASE READ AND FOLLOW
ALL SAFETY RULES AND OPERATING INSTRUCTIONS
Applicable Models: MLF450 | MLD450 | MLRF450
MLF450 Biomedical Freezer
MLD450 Ultra Low Temperature Freezer
MLRF450 Combined Refrigerator and Freezer

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INTRODUCTION
Thank you for choosing KingsBottle for your
refrigeration needs. For safe use, please read this
manual carefully and follow all instructions. Store
this manual near the device for quick referral. "
We cannot guarantee safety if this applicant is used
for objects other than the intended use or used in
any way other than laid out in this manual. "
The contents of this manual can change without
notice due to improvement of performance or
function of the device. Contact our sales
representatives if there are any questions about the
information contained in this manual. No part of this
manual should be reproduced in any form without
written permission from KingsBottle. "
For important safety notices, please read pages 4-6.
Only trained and authorized personnel should
operate this biomedical freezer. Only qualified
service personnel or an authorized agent should
install or provide maintenance for this device. "
Only use spare parts sold by KingsBottle. If other
accessories are used, we cannot be held
responsible for any adverse consequences.
However, the user can apply for verification of third-
party accessories from KingsBottle before use. "
You should inspect and maintain the device
according to the specified time intervals found in
this manual.. "
Due to differences between each model and
improvements of the devices, the actual product
may differ from the diagrams included. "
Users have an obligation to be responsible for their
own safety. "
When products are removed from the freezer, always
wear protective gloves. Handling contents or
touching inside the unit without protective gear can
cause frostbite or other injuries.
CONTENTS
BIOMEDICAL FREEZERS
TABLE OF CONTENTS
Chapter
Contents
Page
Part I
Precaution For Safe Operation
4-5
Part II
Precaution For Use
6
Part III
Installation Instructions!
7-8
Part IV
Diagram & Description of Freezer
9
Part V
Operating the Freezer
10-13
PART VI
Maintenance Guide
14
Part VII
After-sale Service
Annex1: Rechargeable Battery
Maintenance,Installation,Replacement and Disposal
Annex2: About installation of printer paper for optional
printer.
Annex3: Remote alarm terminal and RS485 interface
15-16
Part VIII
Specifications
17
Part IX
Warranty Information
18

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PART I PRECAUTIONS FOR SAFE OPERATION
Please read this user manual carefully and store near the device for
quick referral. The following symbols will be used throughout this
manual:"
WARNING
Failure to observe WARNING signs could be hazardous to
personnel, possibly resulting in serious injury or death.
CAUTION
Failure to observe CAUTION signs could result in injury to
personnel and damage to the unit or associated property.
CAUTION HOT
This sign informs the user about the danger of burns from
high temperatures.
DANGER OF EXPLOSION
This sign is a warning of the application of volatile or
explosive chemical substances.
DO NOT TILT
AVOID DIRECT SUNLIGHT
WARNING
•Failure to observe the WARNING signs could be
hazardous to personnel, causing serious personal injury or
even death.
•Because of the presence of carbon dioxide, it is necessary
to evaluate the worksite to ensure proper ventilation. If
ventilation seems to be restricted, consider other ways to
ensure a safe environment: atmospheric monitoring or
other warning equipment.
•Do not touch any electrical parts (power supply plug or
any switches) with a wet hand. This can cause electric
shock.
•Only qualified engineers or service personnel should install
this unit. Installation by unqualified personnel may cause
adverse events like electric shock or fire.
•Be sure to install the unit on a sturdy floor. If the floor is not
sturdy or the installation site has inadequate flooring, the
unit may fall or tip over resulting in injury.
•Be careful with the power cord to avoid short circuits or
open circuits. When removing the plug from the power
outlet, grip the plug and not the cord. Pulling the cord my
result in electric shock or fire.
•When installing the unit, do not push the power line up
against the wall or other furnishings. Leave room for the
compressor and heat source as well.
•Use the dedicated power supply according to the
instructions on the rating level provided with the device. If
you exceed this value, a performance transformer or
appropriate voltage regulator should be installed to ensure
safe operation. Otherwise, this may cause damage to the
freezer or injury to the user.
•Do not tilt the device or hit the device for any reason.
Because of the registration system, unexpected vibration
can damage the freezer.
•To avoid overheating, short circuits, or other dangers,
install the device in a dry, dust-free environment.
•If the unit makes unexpected sounds, smells, or smoke
when turned on, unplug the unit and contact the
manufacturer or supplier. Continued operation may cause
electric shock or fire.
•Install freezer in a dry and ventilated environment to ensure
proper ventilation of the unit. Using the device in a poorly
ventilated environment may cause damage by the release
of heat.
•Do not disassemble, repair, or modify the unit yourself. Any
such work carried out by unauthorized personnel may
result in fire or injury due to malfunction of the unit.
•Storing volatile or flammable substances in this unit may
cause an explosion or fire. Storing corrosive substances in
this unit may lead to damage to the inner components or
electrical parts.
•Ensure a safe environment when dealing with poisonous,
radioactive, or other harmful substances. Improper use
can have a detrimental effect on your health or
environment.
•Do not ground the unit near a gas pipe, water main,
telephone line, or lightning rod. Such grounding may cause
electric shock in the case of an incomplete circuit.
•Use a power supply outlet that is properly grounded to
prevent electric shock. If it is not grounded, it will be
necessary to install a ground by a qualified engineer.
SAFETY

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PART I PRECAUTIONS FOR SAFE OPERATION
Use a power supply outlet that is properly grounded to
prevent electric shock. If it is not grounded, it will be
necessary to install a ground by a qualified engineer.
Don't lengthen the line randomly. If you need to use
2.5mm 2 copper line, keep the 4mm 2 lines to connect the electrical
outlet.
Be sure to install the unit on a sturdy floor, no shaking
or tilting. "
Never install the unit in a flammable or volatile location.
This may cause explosion or fire.
Never install the unit in a humid place, outdoor or a place
with direct sunlight. Deterioration of the insulation may
result which could cause current leakage or electric
shock.
CAUTION:
Failure to observe WARNING signs could result in
injury to personnel and damage to the unit or
associated property. "
•This biomedical freezer should not be used for inanimate
objects, flowers, or other items that are not suitable for low-
temperature settings.
•During usage, the temperature inside the unit is very low. Do
not touch the interior surface or any objects inside without
protective gear.
•Always disconnect the power plug when the unit is not used
for long periods.
•When you request any repair or maintenance, have a safety
check sheet prepared for the safety of service personnel.
•Check all settings on the controller prior to restarting the
freezer.
•The biomedical freezer should only be used as a storage
device.
•Always hold the handle while closing the door. This will reduce
the likelihood of injury to your hand.
•Restrict access to the key from unauthorized personnel to
avoid unexpected injury.
•Locate an even and sturdy floor for installation. This will prevent
the unit from tipping or falling. Improper installation may result
in injury.
•Regularly check the filter and clean it as necessary. This will
avoid possible overheating of the unit.
•When moving the unit, do not tilt it more than 45 degrees.
Transportation should be handled with care.
SAFETY
BIOMEDICAL FREEZERS

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PART II PRECAUTIONS FOR USE
•When the temperature in the freezer has reached the set temperature, put the items in the freezer in batches. No more than 1/3 of the volume of
items should be used per batch to avoid the temperature rising too much.
•The temperature display will show the temperature around the sensor initially. There will be a difference between the displayed temperature and
the actual temperature in the center of the unit at first. The center temperature will gradually approach the displayed temperature.
•To clean the interior surface, use lukewarm water or a diluted neutral detergent and a soft cloth. Do not use brushes, acid, gasoline, soap
powders, polish or hot water. These materials may damage the paint surface or plastic and rubber parts. Do not use volatile solvents to wipe
plastic or rubber parts.
•If the unit is not used for long periods of time, disconnect the plug from the power source.
SAFETY

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PART III INSTALLATION
INSTALLATION ENVIRONMENT
•The Ambient temperature is 16°C~32°C, while the optimal ambient temperature is 18°C~25°C. An air conditioning system may be required to
maintain ambient temperature.
•Relative humidity: ≤80%RH
•No strong vibration and no corrosive gases nearby.
•Large amounts of dust should not be present.
•No shaking or vibrating of the freezer.
•The altitude of the location of the freezer: ≤2000m
•Input voltage ≤110+10% (V)
•No direct sunlight or any other cooling or heating source and no electromagnetic interference or the freezer will not run properly.
INSTALLATION SITE
This unit is meant for precision. When selecting a location to install this unit, you need the following conditions for perfect performance:"
•Should not be installed in a small confined space, and the door of the room should not be less than the height of the unit.
•Install the unit on a sturdy floor to avoid excessive vibration and noise.
•Installing the unit in direct sunlight may cause malfunctioning and may shorten the life of the unit. Good ventilation is necessary.
•Socket inputs should be connected to circuit protection facilities.
•Check the working voltage of the place before starting the freezer. A voltage stabilizer is suggested to be used at the place where the voltage is not
stable. Make sure the normal input voltage is stable at or 110V± 10%. Power of voltage stabilizer should be more than 4KW.
•Be sure to ground the unit; If the power cord socket is equipped with grounding wire, check the connection before use. If the power supply outlet is
not grounded, it will be necessary to install a ground by qualified engineers.
WARNING
•Grounding through a gas pipe, water pipe, line or lightning rod can cause electric shock.
•After installation, the power plug must be within reach and convenient to unplug the power cord in case of an emergency.
•There should be no items covering the air vents of the biomedical freezer.
CAUTIONS BEFORE USE
CAUTION: Do not put the packing plastic within reach of children as suffocation may occur
•Remove all package components (include the protection foam inside the package).
•Check the device, accessories and documents with the device as per the list of packing.
•Clean the interior surface with lukewarm water using a soft cloth.
•Before use, make sure the temperature control probe is properly immersed in the test liquid.
INSTALLATION
BIOMEDICAL FREEZERS

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PART III INSTALLATION
STANDING
•After unpacking, the freezer must be allowed to stand upright for at least 2 hours to allow the lubricant and refrigerant to flow back to the
compressor and stabilize. Failure to do so may affect the performance and service life of the freezer.
FOR INITIAL START
Operate as follows for the first start:"
•Connect the power cord to the appropriate socket.
•Do not open the door during the cooling process. This will cause the temperature to rise.
•There must be an authorized person responsible for the freezer in the facility to check the operation status and make daily records. The inside
temperature of the cabinet will rise up during a failure. If it is not available to be repaired in a short time, take out the stored items and transfer to
another safe location.
•Before putting the articles inside the freezer, please check if the temperature set range of this device is matching the requirement of the articles.
•Due to the consistency of refrigeration, there is a little difference between the actual temperature displayed on the controller and the set
temperature. This is a normal phenomenon.
•Biomedical freezers are storage devices, do not put excessive amounts of “hot” items into the freezer at one time. This can cause compressor
damage because of unnecessary overuse. It is important to put in items in batches and wait for temperature to reach desired value for next batch.
•Do not put electric devices in the freezer without permission.
•Do not change the setting temperature frequently within a short time. The actual temperature may not reach the set temperature. Do not cover
sensors in the freezer when you put in samples and keep distance between the samples and the inner side of the freezer to make sure the cold air
will circulate throughout the freezer. Failure to do so will cause instability of the inner temperature and inaccuracy of the display temperature.
•The freezer controller has a memory of set points. When restarting the freezer after a power failure, the freezer will continue to follow the previous
operation. Restart after 5 minutes to avoid damage to the compressor.
INSTALLATION

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PART IV DIAGRAM & DESCRIPTION OF FREEZER
FEATURES
As the product is improved and the model changes, the actual product may be different from the sample diagram.
The above picture is only an example of the identifier function piece.
Structure and composition: the product consists of a box, a glass door structure, a refrigeration system, and a control system.
Scope of application: This product is suitable for hospitals, pharmacies, epidemic prevention stations, research institutions, biopharmaceutical
departments and so on.
BIOMEDICAL FREEZERS
MLRF450 Combined Refrigerator and Freezer
MLF450 Biomedical Freezer
MLD450 Ultra Low Temperature Freezer

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PART V DISPLAY PANEL FUNCTION DESCRIPTION
OPERATION
1. Function description of control panel
a. The temperature display will show the average
temperature of the upper chamber and the lower chamber inside the
unit while under normal conditions. The temperature is displayed in
Celsius.
b. Door status indicator
When the door opened, the light is on; when the door is closed, the light
is off.
c. Fault indicator light: When the product runs normally, the indicator
light is off; The indicator light is on for operation abnormality.
d. is the button to turn on the light.
The default state of the lamp is off. Use this key to turn the light on
and off. When off, the light will turn on when the door is open and off
when closed. If turned on, the light will remain on with the door is
opened or closed. The unit has two settings: automatic lighting and
manual lighting. With automatic lighting, the light will turn on when the
door is opened and will turn off after 5 seconds. The user can
manually control the light with this button. When the light is manually
turned off, the unit will enter the automatic lighting state.
e. is the printing key.
The system can keep the data for 7 days to print. Press the print key
to print the temperature at any time.
f. is the up key.
In the parameter setting mode, you can move to the next parameter,
or increase the parameter value. For example, when setting the set
temperature, this will increase the temperature. When setting
parameters, the up button will increase the amount of each
parameter. In normal state, data can be imported by pressing the up
key for 3 seconds.
g. is the down key.
In the parameter setting mode, this will move to the previous
parameter or reduce the parameter value.
When setting the set temperature, the temperature is reduced when
pressed.
h. is the set / mute key. Press this for the inside temperature.
After 5 seconds, the normal display is restored.
While the unit is unlocked, press for 3 seconds to enter the
unit’s menu.
When the alarm is sounding (including the cabinet high temperature
alarm, the door open alarm, the sensor fault alarm, etc.), press
and the buzzer will stop. The display will show the temperature for 5
seconds before returning to normal display.
While the unit is unlocked, you can use as the settings key.
In the unlocked state, when setting parameter mode, press this key
to display the parameter and parameter name. If the press time is
longer than 3 seconds, the settings will be saved and the display will
return to the normal interface.
i. USB data export.
Automatic export: when the USB disk is connected to the USB
interface, the unit will buzz once, display "on", and the PDF files are
generated for the current month and the last month. After the data
transmission is completed, the unit will buzz once again, display
"end", and then will return to normal display after 6 seconds
Manually export: once the USB disk is inserted, press the for
3 seconds. The display will show “d01” and you can press up or
down to select from d01-d012: previous one month to previous
twelve months. Select the number of months then press to
confirm the data you want downloaded.
Note: when the digital display flickers "LoF", the recorder has not
started; press at the same time, the "LoF" will disappear
after 3 seconds ,the buzzer will sound once, and the recorder will
start.